<template>
  <div class="child">
    <h2>我是Child组件</h2>
    <h2>来自全局的变量 {{ x }}</h2>
    <h4 v-beauty="sum">好开心</h4>
    <h3>当前求和为: {{ sum }}</h3>
  </div>
</template>
<script setup lang="ts">
import { ref } from 'vue'
import axios from 'axios'

let sum = ref(15)
</script>
